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* fix(#2362): materialize third-party capability skills on opencode/kilo install installOpencodeFamilyArtifacts/installOpencodeFamilySkills never received the capability registry, so a registered+surfaced+active third-party capability skill was silently dropped by the OpenCode/Kilo combined-family INSTALL path (registry said surfaced:true, disk had nothing). Thread capabilityRegistry through and reuse the existing #2322 seam's exported helpers (readInstalledCapabilitySkill, capabilityClusterStems, CAPABILITY_SKILL_MARKER) to fill in third-party skills after the first-party loop, with the same guarantees: registry-bound ownership, first-party-wins, full/'*' sentinel support, and graceful degradation on a missing/corrupt capability skill. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> * test(#2362): cover the tiered (non-'*') profile candidateStems branch Review found the new third-party capability-skill fill-in for OpenCode/Kilo had zero coverage of the tiered-profile path — all 12 regression tests only exercised the '*' full-profile sentinel. Adds a case that resolves a `standard`-tier profile through a synthetic registry (mirroring the seam's own __registryFor pattern) and asserts the resulting concrete Set still materializes the registered capability skill, with its prune-parity marker, alongside the tier's first-party skills. Also adds the .changeset/ fragment this fix was still missing. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> * chore(#2362): backfill changeset pr (#2434) --------- Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
GSD Core
Git. Ship. Done.
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A light-weight meta-prompting, context engineering, and spec-driven development system for Claude Code, OpenCode, Antigravity CLI, Kimi CLI, Kilo, Codex, Copilot, Cursor, Windsurf, and more.
What is GSD Core
GSD Core is a context-engineering and spec-driven development framework that drives AI coding agents (Claude Code, Codex, Antigravity CLI, Kimi CLI, Copilot, Cursor, and more) through a disciplined phase loop. It solves context rot — the quality degradation that accumulates as an AI fills its context window — by running all heavy research, planning, and execution work in fresh-context subagents while keeping your main session lean.
How it works
Each milestone repeats the same five-step loop, one phase at a time:
- Discuss — capture implementation decisions before anything is planned
- Plan — research, decompose, and verify the plan fits a fresh context window
- Execute — run plans in parallel waves; each executor starts with a clean 200k-token context
- Verify — walk through what was built; diagnose and fix before declaring done
- Ship — create the PR, archive the phase, repeat for the next one
Quickstart
npx @opengsd/gsd-core@latest
The installer prompts for your runtime (Claude Code, OpenCode, Antigravity CLI, Kimi CLI, Kilo, Codex, Copilot, Cursor, Windsurf, and more) and whether to install globally or locally. The installer is required for cross-runtime compatibility — do not copy files from agents/ or commands/ directly.
On another runtime or without Node.js? See Install on your runtime.
Once installed, start a new project or onboard an existing repo:
/gsd-new-project # greenfield project
/gsd-onboard # existing codebase
New here? Follow Your first project for a guided walkthrough from install to first shipped phase, or Onboarding an existing codebase for brownfield setup.
Documentation
What's new in 1.7.0 → docs/whats-new-1.7.0.md
Tutorials — learning by doing:
How-to guides — task-focused recipes:
Reference — authoritative facts:
Explanation — concepts and design decisions:
Full index: docs/README.md. Other languages: 日本語 · 한국어 · Português · 简体中文.
Why it works
Most AI-coding setups fail at scale because context bloat silently degrades output quality, there is no shared memory between sessions, and nothing verifies that code actually works. GSD Core solves all three: heavy work runs in fresh subagents, structured artifacts like STATE.md and CONTEXT.md survive session boundaries, and the verify step walks through what was built and generates fix plans before a phase is declared done. See docs/explanation/context-engineering.md for the full reasoning.
Troubleshooting? See docs/how-to/recover-and-troubleshoot.md.
Community
| Project | Platform |
|---|---|
| gsd-opencode | Original OpenCode port |
| Discord | Community support |
Star History
License
MIT License. See LICENSE for details.
Claude Code is powerful. GSD Core makes it reliable.